From:	sos AT prospect DOT com DOT ru (Sergey Okhapkin)
Subject:	Select on files.
15 Jul 1998 12:08:06 -0700 :
Message-ID:	<01BDB041.466F6430.cygnus.cygwin32.developers@sos>
To:	"'Christopher Faylor'" <cgf AT cygnus DOT com>
Cc:	"cygwin32-developers AT cygnus DOT com" <cygwin32-developers AT cygnus DOT com>

óhristopher Faylor wrote:
> I've been meaning to ask you about the files_select patch.  I was going
> to install it, but then I noticed that the Single UNIX man page for 
select
> says that files are supposed to be "always ready".  I don't know what 
POSIX
> says, but I am not sure that we should be installing non-standard stuff.
> I *do* think that being able to select on files is a nice idea, though.
>

With my patch disk files are ready to read when file size becomes greater 
than current file pointer. I need this patch for one porting project - unix 
FOFOes are emulated  with disk files there, but the code needs a select() 
on FIFO fd :-) The algorhytm is very simple - fifo writing code just 
appends the data to the file, fifo reading code reads data from the file 
and truncates it on EOF condition. Of course, file access is mutexed. Very 
simple, but it works:-)

> I hadn't noticed the ps replacement.  I'll take a look at it.  Did you 
notice
> my change to ps in the recent snapshot?  I created an external interface 
to

Yes, I noticed the change, but had no time to implement them in my ps.

--
Sergey Okhapkin, http://www.lexa.ru/sos
Moscow, Russia

- Raw text -